1. (2019四下·东海期中) 从方框中选择适当的的介词填空

for      to       in      on      at

1. （1） Welcome backour school.
3. （2） It's time school. Hurry up!
5. （3） I can see some flowersthe hill.
7. （4） We often have breakfast  seven thirty every morning.
9. （5） We have three lessonsthe afternoon.